Coding has become one of the most critical skills you can have for furthering your career. Whether you are an experienced developer who wants to learn a new language or you are new to programming, this book can be your comprehensive Ruby coding guide.
This book has too much emphasis on gimmicky tools for a true guide. It also includes glaring factual errors like a blanket recommendation for floating point types over integral types due to "superior precision" without discussing round-off error, and a belief that all APIs use string types requiring coercion. I found the free Programming Ruby guide on the Ruby Doc website to be far better written.